#ifndef EXCEPTIONS_H_
#define EXCEPTIONS_H_

class NonexistentItem {
public:
	NonexistentItem() {}
};

class ExistentItem {
public:
	ExistentItem() {}
};

class ExistentBid {
public:
	ExistentBid() {}
};

class ExistentPreference {
public:
	ExistentPreference() {}
};

class NonexistentClient {
public:
	NonexistentClient() {}
};

class ExistentClient {
public:
	ExistentClient() {}
};

class ExistentAuctionParticipant {
public:
	ExistentAuctionParticipant() {}
};

class NonexistentTransaction {
public:
	NonexistentTransaction() {}
};

class NonexistentAuction {
public:
	NonexistentAuction() {}
};

class InvalidParameter {
public:
	InvalidParameter() {}
};

#endif /* EXCEPTIONS_H_ */
